After the positive news about the Russia-Ukraine negotiations, the market risk aversion plunged. International oil prices fell back on The 29th after a straight drive on the 28th, and precious metals also continued to fall. China's domestic futures market was stable for the time being. By the end of The 30th, Shanghai gold main contract closed down 0.59%, Shanghai silver main contract closed down 1.46%. The main contract was up 0.77 percent at 690.7 yuan per barrel in late trading.
Back in international markets overnight, WTI crude oil futures briefly fell below $100 / BBL, while Brent crude hit its lowest intraday level in nearly two weeks. Spot gold briefly fell below $1,900 an ounce. COMEX gold futures closed down 1.1 percent at $1,918.4 an ounce. COMEX silver futures closed down 1.14 percent at $24.91 an ounce. "Crude oil prices have been extremely sensitive to changes in geopolitical news recently." Traders believe that the current oil price is still in a wide range of shocks, the situation in Ukraine to bring the premium is still in, although the market has a further decline in the drive, but should not be too bearish, recommended to wait and see for the time being. The Ukraine premium is still there, and there will be some volatility in the natural graphite market.
Given that what is prepared from natural graphite is usually artificial graphite in the narrow sense, this paper will only analyze and discuss the differences and links between natural graphite and artificial graphite in the narrow sense.
The crystal development of natural graphite is relatively complete, the graphitization degree of natural flake graphite is usually above 98%, and the graphitization degree of natural microcrystalline graphite is usually below 93%.
The degree of crystal development of artificial graphite depends on the raw material and the heat treatment temperature. Generally speaking, the higher the heat treatment temperature, the higher the degree of graphitization. At present, the degree of graphitization of artificial graphite produced in the industry is usually less than 90%.
Natural flake graphite is a single crystal with a relatively simple structure, with only crystallographic defects (point defects, dislocations, stacking faults, etc.), and macroscopically showing anisotropic structural characteristics. The grains of natural microcrystalline graphite are small, the grains are disorderly arranged, and there are pores after the impurities are removed, showing the isotropic structural characteristics on the macroscopic level.
Artificial graphite can be seen as a multi-phase material consisting of a graphite phase transformed by carbonaceous particles such as petroleum coke or pitch coke, a graphite phase transformed by a coal bitumen binder encapsulated around the particles, particle accumulation, or pores formed after heat treatment of coal tar binder, etc.
Natural graphite usually exists in powder form and can be used alone, but is usually used in combination with other materials.
There are many forms of artificial graphite, including powder, fiber, and block, while artificial graphite in the narrow sense is usually blocked, which needs to be processed into a certain shape when used.
Physical and chemical properties
Natural graphite and artificial graphite have both commonalities and differences in performance. For example, both natural graphite and artificial graphite are good conductors of heat and electricity, but for graphite powders of the same purity and particle size, natural flake graphite has the best heat transfer performance and electrical conductivity, followed by natural microcrystalline graphite and artificial graphite the lowest.
Graphite has good lubricity and certain plasticity. Natural flake graphite has better crystal development, smaller friction coefficient, best lubricity, and highest plasticity, while dense crystalline graphite and cryptocrystalline graphite are second, and artificial graphite is worse.
High quality graphite manufacturer
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Russia is a major supplier of industrial metals such as nickel, aluminium and palladium. Russia and Ukraine are both major wheat exporters, and Russia and Belarus produce large amounts of potash, an input to fertiliser. The price and market of the natural graphite will fluctuate under its influence. Prices of these goods have been rising since 2022 and are now likely to rise further because of the Russia-Ukraine conflict. Russia is a major supplier of industrial metals such as nickel, aluminium and palladium. Russia and Ukraine are both major wheat exporters, and Russia and Belarus produce large amounts of potash, an input to fertiliser. The price and market of the natural graphite will fluctuate under its influence. Prices of these goods have been rising since 2022 and are now likely to rise further because of the Russia-Ukraine conflict.
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